program filip;
var s1,s2:string;
    a,b:longint;
begin
readln(s1);
readln(s2);
val(s1,a);
val(s2,b);
if a>b then writeln(s1[3],s1[2],s1[1]) else
writeln(s2[3],s2[2],s2[1]);

end.